import * as React from 'react';
import { Slot } from '@radix-ui/react-slot';
import { cva, type VariantProps } from 'class-variance-authority';
import { Loader } from 'lucide-react';

import { cn } from '@/lib/utils';

const buttonVariants = cva(
  'ring-offset-background focus-visible:ring-ring inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium transition-colors hover:opacity-50 focus-visible:outline-hidden focus-visible:ring-2 focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
  {
    variants: {
      variant: {
        default:
          'bg-primary text-primary-foreground shadow-xs hover:bg-primary/90',
        destructive:
          'bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60',
        outline:
          'border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50',
        secondary:
          'bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80',
        ghost:
          'hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50',
        link: 'text-primary underline-offset-4 hover:underline',
        custom_accent1:
          'text-primary-accent bg-green-600 hover:bg-green-600/90',
        custom_accent2: 'text-primary-accent bg-red-700 hover:bg-red-700/90',
      },
      size: {
        default: 'h-9 px-4 py-2',
        sm: 'h-8 rounded-md gap-1.5 px-3',
        lg: 'h-10 rounded-md px-6',
        icon: 'size-9',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  },
);

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
  loading?: boolean;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  (
    {
      className,
      variant,
      size,
      asChild = false,
      loading = false,
      children,
      ...props
    },
    ref,
  ) => {
    const Comp = asChild ? Slot : 'button';

    return (
      <Comp
        ref={ref}
        data-slot="button"
        className={cn(buttonVariants({ variant, size, className }))}
        disabled={loading || props.disabled}
        {...props}
      >
        {loading ? <Loader className="size-4 animate-spin" /> : children}
      </Comp>
    );
  },
);
Button.displayName = 'Button';

export { Button, buttonVariants };
